A Pattern-Reconfigurable Single-Element Microstrip Antenna

Siti Nailah Mastura Zainarry, Shengjian Jammy Chen, Christophe Fumeaux

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Citations (Scopus)

Abstract

A pattern-reconfigurable antenna based on a simple single-element microstrip antenna is presented. The antenna has a shorting wall near the patch center to introduce two slightly shifted resonances at its two radiating edges. A stub-loaded varactor is mounted at one of the patch radiating edges to obtain pattern reconfigurability, by electronically detuning the frequency of one of the resonances. Preliminary measurements of a prototype demonstrate that the antenna exhibits beam squint up to 39° on one side of the patch at the center frequency of 2.40 GHz, when the bias voltage is tuned from 18 to 3.8 V. Also for a fixed bias voltage of 6.3 V, the beam can scan from 8 ° to 43 ° as a function of frequency within the operation bandwidth from 2.35 to 2.45 GHz. The presented results validate the concept which will be further extended to scan beam on two sides with frequency selectivity.

Original languageEnglish
Title of host publication2018 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages2
ISBN (Electronic)9789994904709
DOIs
Publication statusPublished - 10 Dec 2018
Externally publishedYes
Event2018 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2018 - Wolmar, Mauritius
Duration: 15 Oct 201818 Oct 2018

Publication series

Name2018 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2018

Conference

Conference2018 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2018
Country/TerritoryMauritius
CityWolmar
Period15/10/1818/10/18

Keywords

  • microstrip antenas
  • Pattern reconfigurable
  • reconfigurable antennas
  • stub-loaded microstrip line
  • varactors

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